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i posted this question before and the tutor used the wrong numbers.
I am still trying...
I'm doing a titration lab tomorrow and I am not sure what the formulas are to...
I'm doing a titration lab tomorrow and I am not sure what the
formulas are to calculate the moles of NaOH, the moles of
HCl, and the molarity of HCl.
The objective of this laboratory is to determine the molarity of
a hydrochloric acid solution using a known concentration of sodium
hydroxide as the titrant.
volume of HCl in flask: 25.00 mL
the net ionic equation for the reaction is:
H+(aq) + OH-(aq) --> H2O(l)
I don't have the data...
For the chemical reaction 2 HBr(aq)BaOH)2(aq) >2 H20(1) + BaBr2(aq) write the net ionic equation, including...
For the chemical reaction 2 HBr(aq)BaOH)2(aq) >2 H20(1) + BaBr2(aq) write the net ionic equation, including the phases net ionic equation: Write the net ionic equation for the reaction shown. Include physical states 2 HNO (aq)Sr(OH)2(aq) 2 H2O) SrNO)2(aq) net ionic equation Zinc reacts with hydrochloric acid according to the reaction equation Zn(s)2 HCl(aq) » ZnCl2(aq) + H2(g) How many milliliters of 2.00 M HCl(aq) are required to react with 3.55 g Zn(s)? volume mL By titration, it is found...
Hello, I am not sure what I am doing wrong. Could someone please explain :) Thank...
Hello, I am not sure what I am doing wrong.
Could someone please explain :)
Thank you!
The mineral dolomite contains magnesium carbonate. This reacts with hydrochloric acid. MgCO3(s) + 2 HCl(aq) + CO2(g) + MgCl, (aq) + H20(0) a. Write the net ionic equation for this reaction and identify the spectator ions. (If needed, use H3O+ for the hydronium ion. Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (3). If a...
I feel like my answers are wrong, so can someone answer these questions? Thank you! 1....
I feel like my answers are wrong, so can
someone answer these questions? Thank you!
1. Consider the following reaction by which hydrochloric acid is used to neutralize 20 ml of 0.1 M NaOH. a. In the titration process: NaOH should be in the and it is called HCI should be in the and it is called ______ is neutralized by ____ henolphtalein will be added to the analyte to turn the __ _________ into ____at the endpoint. b. Write...
Hello, I will try this again I am trying to prepare a buffer from a solution...
Hello, I will try this again I am trying to prepare a buffer from a solution of a weak acid. This is for part D. of Experiment 25 - Ph Measurements - buffers and their properties I am to be give an 0.50 M solution of weak acid with a given pKa, and I will preparre a buffer of a desired pH measurement (choose any pH) I must first dilute the acid solution to 0.10 M by adding 10 ml...
#16 please !!! i posted the wring question !!! 11. You take an aspirin tablet (a...
#16 please !!! i posted the wring question !!!
11. You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, burn it in air, and collect 2.20 g of carbon dioxide and 0.400 g water. The molar mass of aspirin is between 170 and 190 g/mol. The molecular form of aspirin is a) CHAO, b) C,H,O, c) C3H605 d) CH.04 e) none of these 16. A student weighs out 0.568...
Molarity for NaOH = 0.0873 2. In a second titration with the same solution of NaOH as used in Question #1, the student...
Molarity for NaOH = 0.08732. In a second titration with the same solution of NaOH as used in Question #1, the student weighs out a sample of KHP of 0.359 g. Calculate the volume of the NaOH solution needed to neutralize this sample of KHP. 3. A monoprotic weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction. 4. If K, for the weak acid, HA is 1.8...
Could you please help me with the questions I got wrong? If you dont know the...
Could you please help me with the questions I got wrong? If you
dont know the answer please do not comment, leave it for another
expert to answer because I really need to get this done , Thank you
so much ^^ There's also a guide to the calculations but i dont get
it
Table view List view Sample 2 Sample 3 Table 5. Calculations for concentration of acid solution Sample 1 [1] Volume of acid (mL) 25.0 25.0 25.0...
I am needing help to solve this table. specifically the step 4 portion. My 2 compounds...
I am needing help to solve this table. specifically the step 4
portion. My 2 compounds that I'm using for this experiment are 0.1
M NaHCO3 (acid) and 0.1 M Na2CO3. im having issues finding the
concentration and pKa of everything.
thank you!
Step 1 hydrogen carbonate/carbonate (HCO3/003-) [NaHCO₃ and Nagco ₂] Initial Buffer: Pour 10 mL of the acid component of your buffer into a 50-ml beaker. Add 10 mL of the conjugate base of your buffer, and mix....
A 1.982g sample of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt ( ACES−K+, MW = 220.29 g/mol) is dissolved i...
A 1.982g sample of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt ( ACES−K+, MW = 220.29 g/mol) is dissolved in 87.51 mL of water.To the solution, 21.98 mL of HCl is added, resulting in a pH of 7.27. Calculate the concentration of the HCl solution. The p?a of ACES is 6.85. I have calculated this several times and have gotten the same answer, 0.112754 M. However, Sapling says that I am wrong. Then Sapling gives these instructions: To begin, calculate the original number...
I'm doing a titration lab tomorrow and I am not sure what the
formulas are to calculate the moles of NaOH, the moles of
HCl, and the molarity of HCl.
The objective of this laboratory is to determine the molarity of
a hydrochloric acid solution using a known concentration of sodium
hydroxide as the titrant.
volume of HCl in flask: 25.00 mL
the net ionic equation for the reaction is:
H+(aq) + OH-(aq) --> H2O(l)
I don't have the data...
For the chemical reaction 2 HBr(aq)BaOH)2(aq) >2 H20(1) + BaBr2(aq) write the net ionic equation, including the phases net ionic equation: Write the net ionic equation for the reaction shown. Include physical states 2 HNO (aq)Sr(OH)2(aq) 2 H2O) SrNO)2(aq) net ionic equation Zinc reacts with hydrochloric acid according to the reaction equation Zn(s)2 HCl(aq) » ZnCl2(aq) + H2(g) How many milliliters of 2.00 M HCl(aq) are required to react with 3.55 g Zn(s)? volume mL By titration, it is found...
Hello, I am not sure what I am doing wrong.
Could someone please explain :)
Thank you!
The mineral dolomite contains magnesium carbonate. This reacts with hydrochloric acid. MgCO3(s) + 2 HCl(aq) + CO2(g) + MgCl, (aq) + H20(0) a. Write the net ionic equation for this reaction and identify the spectator ions. (If needed, use H3O+ for the hydronium ion. Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (3). If a...
I feel like my answers are wrong, so can
someone answer these questions? Thank you!
1. Consider the following reaction by which hydrochloric acid is used to neutralize 20 ml of 0.1 M NaOH. a. In the titration process: NaOH should be in the and it is called HCI should be in the and it is called ______ is neutralized by ____ henolphtalein will be added to the analyte to turn the __ _________ into ____at the endpoint. b. Write...
#16 please !!! i posted the wring question !!!
11. You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, burn it in air, and collect 2.20 g of carbon dioxide and 0.400 g water. The molar mass of aspirin is between 170 and 190 g/mol. The molecular form of aspirin is a) CHAO, b) C,H,O, c) C3H605 d) CH.04 e) none of these 16. A student weighs out 0.568...
Molarity for NaOH = 0.08732. In a second titration with the same solution of NaOH as used in Question #1, the student weighs out a sample of KHP of 0.359 g. Calculate the volume of the NaOH solution needed to neutralize this sample of KHP. 3. A monoprotic weak acid with the general formula of HA will react with a base, such as NaOH. Write the neutralization equation which describes the reaction. 4. If K, for the weak acid, HA is 1.8...
Could you please help me with the questions I got wrong? If you
dont know the answer please do not comment, leave it for another
expert to answer because I really need to get this done , Thank you
so much ^^ There's also a guide to the calculations but i dont get
it
Table view List view Sample 2 Sample 3 Table 5. Calculations for concentration of acid solution Sample 1 [1] Volume of acid (mL) 25.0 25.0 25.0...
I am needing help to solve this table. specifically the step 4
portion. My 2 compounds that I'm using for this experiment are 0.1
M NaHCO3 (acid) and 0.1 M Na2CO3. im having issues finding the
concentration and pKa of everything.
thank you!
Step 1 hydrogen carbonate/carbonate (HCO3/003-) [NaHCO₃ and Nagco ₂] Initial Buffer: Pour 10 mL of the acid component of your buffer into a 50-ml beaker. Add 10 mL of the conjugate base of your buffer, and mix....
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